I'm also facing the same with the clicking sound. Got my hilux a month ago and immediately install lockteck under the steering. Since the lock have a wire connection, I thought may be because the improper wiring by the installer. Since your car also have clicking sound, I think it may be a common.

My one and halfyear Hilux. Last two days fuel indicator lightup at panel eventhough fuel more than half tank.. I thought it just an error and need to reset. Send to Toyota and was informed that it was cause by diesel filter clogged or it mixed up with water and need to change. Poor Malaysia Diesel. Damage RM118.00. He said if it happen again within 2 month it need to bring down the tank for cleanning.